Snapshot A 17-year-old female presents complaining of an irresistible urge to sleep at sudden times throughout the day. This has disturbed her school functioning. She sometimes feels like she "is paralyzed" for several minutes when she wakes up. She "passed out" one day at school when she was startled by her boyfriend. Introduction Clinical definition login to view 3 more bullets Epidemiology Strong genetic component Typically onsets in young adulthood ETIOLOGY Pathophysiology login to view 1 more bullet Presentation Symptoms login to view 12 more bullets STUDIES Polysomnography Treatment Pharmacologic login to view 5 more bullets Sleep regulation login to view 2 more bullets